You can start anytime, without a specific date. It has monthly and weekly pages where you can record your period and understand your menstrual cycle. For those who want to take care of their mind and body and live a healthy and fulfilling life. 【4 Features】 ・See your period and physical condition for a year at a glance ・Record not only your period but also symptoms you're concerned about (or want to improve) on a daily basis ・Information pages about periods that are good to know ・Weekly pages where you can write detailed information about your period ・Notebook size: B6 size 【Notes】 This is a new, unused item, but it has been handled by a person once. Please check the photos and purchase with your understanding. Recycled packaging materials may be used. Please note that cancellations due to customer reasons, such as incorrect size, will not be accepted. Thank you for your understanding. #PeriodNotebook #FertilityPlanning #Menstruation